About FTIMaterials from the office of the so-called Individual Group of Academician A.F. Ioffe and his laboratory, and the subsequent Institute of Semi-Conductors of the Academy of Sciences of the USSR (through 1952) are retained in the St. Petersburg Branch of the Archive of the Russian Academy of Sciences (PFA RAN, E–25, fond 852; electronically: http://isaran.ru/isaran/isaran.php?pa...). Part of the personal papers of A.F. Ioffe are also in PFA RAN (fond 910; electronically: http://isaran.ru/isaran/isaran.php?pa...).Nauchnyi arkhiv[Scientific Archive]read more